# US 10,369,013 B2 · Hip joint instrument and method

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,369,013 B2
- Document ID: US10369013B2
- Status: Granted
- Kind: B2
- Application number: 15/005,072
- Filed: 2016-01-25
- Published: 2016-05-19
- Granted: 2019-08-06
- Earliest claimed: 2012-01-06
- Applicants: Peter Forsell
- Inventors: Peter Forsell
- Web page: https://patentgrep.com/patent/US10369013B2

## CPC

- A61F 2/4609: {of acetabular cups}
- A61B 17/1615: {Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material}
- A61B 17/1617: {with mobile or detachable parts}
- A61B 17/1631: {Special drive shafts, e.g. flexible shafts (A61B17/1642, A61B17/164 take precedence)}
- A61B 17/1637: {Hollow drills or saws producing a curved cut, e.g. cylindrical (A61B10/025, A61B17/1695 take precedence)}
- A61B 17/1659: {Surgical rasps, files, planes, or scrapers}
- A61B 17/1666: {for the acetabulum}
- A61B 17/1668: {for the upper femur (A61B17/164 takes precedence)}
- A61B 17/3423: {Access ports, e.g. toroid shape introducers for instruments or hands (access sites for liquids A61M39/0247)}
- A61B 17/3474: {Insufflating needles, e.g. Veress needles}
- A61B 17/56: Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B 17/562: {Implants for placement in joint gaps without restricting joint motion, e.g. to reduce arthritic pain}
- A61B 17/68: Internal fixation devices {, including fasteners and spinal fixators, even if a part thereof projects from the skin (bone staples A61B17/0642)}
- A61B 17/8875: {Screwdrivers, spanners or wrenches}
- A61F 2/28: Bones
- A61F 2/30721: {Accessories}
- A61F 2/30724: {Spacers for centering an implant in a bone cavity, e.g. in a cement-receiving cavity}
- A61F 2/30734: {Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect}
- A61F 2/30749: {Fixation appliances for connecting prostheses to the body}
- A61F 2/30756: {Cartilage endoprostheses (A61F2/3603 takes precedence)}
- A61F 2/32: for the hip
- A61F 2/34: Acetabular cups
- A61F 2/36: Femoral heads {; Femoral endoprostheses}
- A61F 2/3601: {for replacing only the epiphyseal or metaphyseal parts of the femur, e.g. endoprosthetic femoral heads or necks directly fixed to the natural femur by internal fixation devices (non-prosthetic internal fixation devices for the femoral head or neck A61B17/74)}
- A61F 2/3603: {implanted without ablation of the whole natural femoral head (endoprosthetic cartilage A61F2/30756)}
- A61F 2/3607: {including proximal or total replacement of the femur}
- A61F 2/3609: {Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts (A61F2/3601 takes precedence)}
- A61F 2/3662: {Femoral shafts}
- A61F 2/4607: {of hip femoral endoprostheses}
- A61L 27/20: Polysaccharides
- A61L 27/26: Mixtures of macromolecular compounds
- A61L 27/50: Materials characterised by their function or physical properties {, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials}
- A61B 1/00154: {using guiding arrangements for insertion}
- A61B 1/317: for bones or joints, e.g. osteoscopes or arthroscopes
- A61B 6/12: Arrangements for detecting or locating foreign bodies
- A61B 6/4057: {by using radiation sources located in the interior of the body (A61B6/037 takes precedence)}
- A61B 6/425: {using detectors specially adapted to be used in the interior of the body}
- A61B 17/00234: {for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence)}
- A61B 17/00491: {Surgical glue applicators}
- A61B 17/1604: {Chisels; Rongeurs; Punches; Stamps}
- A61B 17/1664: {for the hip}
- A61B 17/686: {Plugs, i.e. elements forming interface between bone hole and implant or fastener, e.g. screw}
- A61B 17/74: Devices for the head {or neck or trochanter} of the femur {(trochanteric devices connected to the proximal part of an endoprosthetic femoral shaft A61F2/30739; endoprosthetic internal fixation devices for the head or neck of the femur A61F2/3601)}
- A61B 17/84: Fasteners therefor {or fasteners being internal fixation devices}
- A61B 17/86: Pins or screws {or threaded wires; nuts therefor (A61B17/72 take precedence)}
- A61B 17/8805: {for introducing fluid filler into bone or extracting it (A61B17/7097, A61B17/8833 take precedence)}
- A61B 17/8872: {Instruments for putting said fixation devices against or away from the bone (A61B17/7074, A61B17/808 take precedence)}
- A61B 2017/0275: {for the hip}
- A61B 2018/202: {Laser enclosed in a hand-piece}
- A61B 2018/206: {the laser light passing along a liquid-filled conduit}
- A61B 2090/062: {penetration depth}
- A61B 2090/066: {for measuring torque}
- A61F 2/4637: {for connecting or disconnecting two parts of a prosthesis}
- A61F 2/482: {Electrical means}
- A61F 2/484: {Fluid means, i.e. hydraulic or pneumatic}
- A61F 2002/30014: {differing in elasticity, stiffness or compressibility}
- A61F 2002/30062: {(bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive}
- A61F 2002/30069: {elastomeric}
- A61F 2002/30125: {elliptical or oval}
- A61F 2002/30153: {rectangular}
- A61F 2002/30154: {square}
- A61F 2002/30166: {H-shaped or I-shaped}
- A61F 2002/30179: {X-shaped}
- A61F 2002/302: {toroidal, e.g. rings}
- A61F 2002/30205: {conical}
- A61F 2002/30364: {Rotation about the common longitudinal axis}
- A61F 2002/30383: {made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove}
- A61F 2002/30387: {Dovetail connection}
- A61F 2002/30405: {made by screwing complementary threads machined on the parts themselves}
- A61F 2002/30462: {retained or tied with a rope, string, thread, wire or cable}
- A61F 2002/30469: {using band clamps}
- A61F 2002/30471: {connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type}
- A61F 2002/30494: {Cooperating protrusions and recesses, e.g. radial serrations, located on abutting end surfaces of a longitudinal connection}
- A61F 2002/30495: {using a locking ring}
- A61F 2002/305: {Snap connection}
- A61F 2002/30507: {using a threaded locking member, e.g. a locking screw or a set screw}
- A61F 2002/30558: {Force-limiting means}
- A61F 2002/30563: {having elastic means or damping means, different from springs, e.g. including an elastomeric core or shock absorbers}
- A61F 2002/30565: {having spring elements}
- A61F 2002/30566: {Helical springs}
- A61F 2002/30576: {with extending fixation tabs}
- A61F 2002/30578: {having apertures, e.g. for receiving fixation screws}
- A61F 2002/30579: {with mechanically expandable devices, e.g. fixation devices}
- A61F 2002/30583: {filled with hardenable fluid, e.g. curable in-situ}
- A61F 2002/30589: {Sealing means}
- A61F 2002/30594: {slotted, e.g. radial or meridian slot ending in a polar aperture, non-polar slots, horizontal or arcuate slots}
- A61F 2002/30601: {telescopic}
- A61F 2002/30604: {modular}
- A61F 2002/30616: {Sets comprising a plurality of prosthetic parts of different sizes or orientations}
- A61F 2002/30668: {Means for transferring electromagnetic energy to implants}
- A61F 2002/3067: {for data transfer}
- A61F 2002/30673: {Lubricating means, e.g. synovial pocket}
- A61F 2002/30675: {Means for regulating synovial fluid pressure}
- A61F 2002/30726: {Centering or guiding rods, e.g. for insertion of femoral shafts}
- A61F 2002/30729: {Separate collars}
- A61F 2002/30733: {Inserts placed into an endoprosthetic cavity, e.g. for modifying a material property}
- A61F 2002/30736: {Augments or augmentation pieces, e.g. wedges or blocks for bridging a bone defect}
- A61F 2002/30754: {Implants for interposition between two natural articular surfaces}
- A61F 2002/30757: {made of a sheet covering the natural articular surface, e.g. cap}
- A61F 2002/30759: {Mosaicplasty, i.e. using a plurality of individual cartilage plugs for filling a substantial cartilage defect}
- A61F 2002/30818: {castellated or crenellated}
- A61F 2002/30841: {Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes}
- A61F 2002/3085: {with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface}
- A61F 2002/30878: {with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts}
- A61F 2002/30886: {externally-threaded}
- A61F 2002/30922: {Hardened surfaces}
- A61F 2002/30968: {Sintering}
- A61F 2002/3208: {Bipolar or multipolar joints, e.g. having a femoral head articulating within an intermediate acetabular shell whilst said shell articulates within the natural acetabular socket or within an artificial outer shell}
- A61F 2002/3233: {having anti-luxation means for preventing complete dislocation of the femoral head from the acetabular cup}
- A61F 2002/3241: {having a ring, e.g. for locking the femoral head into the acetabular cup}
- A61F 2002/342: {the outer shell having circumferential protrusions parallel to the equatorial plane, e.g. circumferential fins or wings}
- A61F 2002/3443: {with an anti-luxation elevated rim portion, e.g. on the inner shell}
- A61F 2002/3483: {having a convex shape, e.g. hemispherical heads}
- A61F 2002/3487: {Partial acetabular cups, e.g. strips replacing only partially the natural acetabular cartilage}
- A61F 2002/3493: {Spherical shell significantly greater than a hemisphere, e.g. extending over more than 200 degrees}
- A61F 2002/3495: {Spherical shell significantly smaller than a hemisphere, e.g. extending over less than 160 degrees}
- A61F 2002/3615: {having a concave shape, e.g. hemispherical cups}
- A61F 2002/3625: {Necks}
- A61F 2002/3631: {with an integral complete or partial peripheral collar or bearing shoulder at its base}
- A61F 2002/365: {Connections of heads to necks}
- A61F 2002/3686: {bent}
- A61F 2002/4622: {having the shape of a forceps or a clamp}
- A61F 2002/4628: {with linear motion along or rotating motion about an axis transverse to the instrument axis or to the implantation direction, e.g. clamping}
- A61F 2002/4631: {the prosthesis being specially adapted for being cemented}
- A61F 2002/4635: {using minimally invasive surgery}
- A61F 2002/4655: {for introducing lubricating fluid}
- A61F 2002/4677: {using a guide wire}
- A61F 2220/0025: Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F 2240/002: Designing or making customized prostheses
- A61L 2400/10: Materials for lubricating medical devices
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)

## Abstract

A surgical instrument for operating hip joint osteoarthritis in a human patient is provided. The hip joint comprises an acetabulum, being a part of the pelvic bone, and a caput femur, being the proximal part of the femoral bone. The surgical instrument is adapted to assist in the operating of the hip joint osteoarthritis from the abdominal side of the pelvic bone of said human patient.

## Claims

### Claim 1

A surgical instrument for operating hip joint osteoarthritis in a human patient, a hip joint comprising an acetabulum, the acetabulum being a part of a pelvic bone, and a caput femur, the caput femur being a proximal part of a femoral bone, wherein said surgical instrument is adapted to assist in the operating of the hip joint osteoarthritis from an abdominal side of the pelvic bone of said human patient, said surgical instrument comprising an abdominal portion insertable through an incision in skin in an abdominal region and adapted to be placed between the incision in the abdominal region and the pelvic bone when the instrument is in use, and a pelvic portion connected to the abdominal portion, being partially insertable through a hole in the pelvic bone from the abdominal side of the pelvic bone, when the instrument is in use, wherein a portion of the pelvic portion is adapted to operate at least partially in a surgically created hole in the pelvic bone.

### Claim 2 (depends on 1)

The surgical instrument according to claim 1, wherein said surgical instrument comprises a bend between said abdominal portion and said pelvic portion, wherein said bend comprises at least one of; a bend with a fixed angle, a bend with an adjustable angle, at least one gear wheel, and at least one universal joint.

### Claim 3 (depends on 1)

The surgical instrument according to claim 1, wherein said surgical instrument comprises a parallel displacing part or section placed between the abdominal portion and the pelvic portion so that the abdominal portion and the pelvic portion are axially displaced.

### Claim 4 (depends on 1)

The surgical instrument according to claim 1, wherein the abdominal portion is more than 100 mm such that the abdominal portion can reach from the incision in the abdominal region to an area of the hip joint opposite the acetabulum.

### Claim 5 (depends on 2)

The surgical instrument according to claim 2, further comprising a gripping end for handling of the instrument, wherein said gripping end is connected to the abdominal portion and adapted to remain outside the skin of the patient when the instrument is in use, wherein a portion between the gripping end and the bend is at least one of; at least 100 mm such that the bend can be placed at the pelvic bone on an opposite side from acetabulum, and more than 200 mm such that the instrument can operate inside of the hip joint from the abdominal side of the pelvic bone.

### Claim 6 (depends on 1)

The surgical instrument according to claim 1, wherein the surgical instrument is a laparoscopic instrument adapted to be inserted through the skin of the abdominal region through a laparoscopic port.

### Claim 7 (depends on 1)

The surgical instrument according to claim 1, wherein said instrument is at least one of:
a special laparoscopic instrument introduced into an abdomen and further down to the pelvic bone on an opposite side of the acetabulum and introduced into the hip joint, further comprising a gripping end, placed outside an abdominal wall when in use, and a hip joint end adapted to be placed in an area of the hip joint, wherein a length of said instrument is adapted to reach from a gripping end and into the hip joint via a surgically created hole in the pelvic bone and wherein a longitudinal extension of said instrument comprises at least one bend, for the instrument to reach, when used as a special laparoscopic instrument to operate the hip joint, from the gripping end into the abdomen and further down to the pelvic bone on the opposite side of the acetabulum and be introduced into the hip joint through the surgically created hole in the pelvic bone,
a special pelvic instrument introduced into a pelvic region and further to the pelvic bone on the opposite side of the acetabulum, and introduced into the hip joint via a surgically created hole in the pelvic bone, further comprising a gripping end, placed outside the skin above the pelvic region when in use, and a hip joint end adapted to be placed in an area of the hip joint, wherein the length of said instrument is adapted to reach from the gripping end and into the hip joint, and wherein the longitudinal extension of said instrument comprises at least one bend, for the instrument to reach, when used as special pelvic instrument to operate the hip joint, from the gripping end into the pelvic region and further down to the pelvic bone on the opposite side of the acetabulum, and introduced into the hip joint through the surgically created hole in the pelvic bone, and
a special retroperitoneal instrument introduced into the body just above a inguinal region following the pelvic bone down to the opposite side of the acetabulum and thereafter introduced into the hip joint via a surgically created hole in the pelvic bone, further comprising a gripping end, placed outside the skin above the pelvic region when in use, and a hip joint end adapted to be placed in an area of the hip joint, wherein the length of said instrument is adapted to reach from the gripping end and into the hip joint and wherein the longitudinal extension of said instrument comprises at least one bend, for the instrument to reach, when used as special retroperitoneal instrument to operate the hip joint, from the gripping end following the pelvic bone and further down to the pelvic bone on the opposite side of the acetabulum and introduced into the hip joint through the surgically created hole in the pelvic bone.

### Claim 8 (depends on 1)

The surgical instrument according to claim 1, wherein said instrument further comprises at least one holding portion connected to the pelvic portion, and at least one mechanical element adapted to be fitted to said at least one holding part of said instrument, wherein said mechanical element is adapted to perform a function during an operation of the hip joint, wherein said mechanical element is adapted to be part of an instrument adapted to be used for at least one of the following functions; drilling, reaming, cooling, heating, flushing, introducing a fluid, sucking, inserting at least one part, connecting at least one part, fixating at least one part, inserting a mould, filling a mould, injecting, lubricating, viewing, optically displaying, placing screws, placing adhesive, placing bone cement.

### Claim 9 (depends on 5)

The surgical instrument according to claim 5, wherein a distance between the gripping end and the bend is at least one of; at least 150 mm, at least 200 mm, at least 300 mm, at least 400 mm, and at least 500 mm.

### Claim 10 (depends on 2)

The surgical instrument according to claim 2, wherein said bend is bent with an angle of at least one of; at least 10 degrees, at least 20 degrees, at least 30 degrees, at least 40 degrees, at least 50 degrees, and at least 60 degrees.

### Claim 11 (depends on 2)

The surgical instrument according to claim 2, wherein the distance between said bend and the pelvic portion of the instrument is at least one of; at least 20 mm, at least 40 mm, at least 60 mm, at least 80 mm, at least 100 mm, at least 120 mm, and at least 140 mm.

### Claim 12 (depends on 1)

The surgical instrument according to any one of claim 1, wherein said surgical instrument is adapted to at least one of; ream the acetabulum of said human patient, ream the caput femur of said human patient, and ream both the acetabulum and the caput femur of said human patient, wherein said surgical instrument is expandable, thus allowing said surgical instrument to be inserted through a hole in the pelvic bone smaller than an area possible to ream using said surgical instrument.

### Claim 13 (depends on 1)

The surgical instrument according to any one of claim 1, wherein said surgical instrument further comprises at least one camera or at least one light source.

### Claim 14 (depends on 1)

The surgical instrument according to any one of claim 1, wherein said surgical instrument is adapted to cool an area of the hip joint or an area of the pelvic bone.

### Claim 15 (depends on 1)

The surgical instrument according to any one of claim 1, wherein said surgical instrument is adapted to provide a fluid to an area of the pelvic bone or the hip joint.

### Claim 16 (depends on 1)

The surgical instrument according to any one of claim 1, wherein said surgical instrument is adapted to provide suction to an area of the pelvic bone or an area of the hip joint.

### Claim 17 (depends on 1)

The surgical instrument according to claim 1, wherein said surgical instrument is adapted to at least one of:
introduce a prosthesis through the hole in the pelvic bone and into the hip joint,
connect at least two prosthetic parts to each other after insertion into the hip joint,
fixate an artificial hip joint surface, or a part of an artificial hip joint surface, to the pelvic bone or the femoral bone, and
place or fixate fixating elements to the pelvic bone or a prosthetic part in the hip region or the pelvic bone region.

### Claim 18 (depends on 1)

The surgical instrument according to claim 1, wherein said surgical instrument is adapted to introduce a mould into the hip joint or inject a fluid into a mould placed in the hip joint.

### Claim 19 (depends on 1)

The surgical instrument according to claim 1, wherein said surgical instrument is adapted to introduce adhesive into the hip joint.

### Claim 20 (depends on 1)

The surgical instrument according to claim 1, wherein said surgical instrument is adapted to inject a lubricating fluid into the hip joint, and wherein said surgical instrument comprising:
at least one container,
a fluid injecting member, and
a fluid driving member in fluid connection with said fluid injecting member and said at least one container.